Nesota



(No Model.)

- W. JAOOBY.

HAMMER FOR DRIVING.

Patented Deo. l, l89l.

1,. v IIIKN m1171656 es M1@ UNiTnD States' v PATENT OFFICE.

IVILLIAM JAOOBY, OF FULDA, MINNESOTA, ASSIGNOR OF ONE-HALF TO L.

O. BATHEN, OF SAME PLACE, AND LARNED COBURN, OF BELFAST, MIN- NESOTA.

HAMMER FIOR DRIVING.

SPECIFICATION forming part of Letters Patent No. 464,217', dated'December 1, 1891.

Application filed .Tuly V2, 1890. Serial No. 357,557. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM JACOBY, a citizen of the United States,residing atFulda, in the county of Murray and State of Minnesota, haveinvented a certain new and useful Improvement in Hammers for DrivingNails, which is fully set forth in the following specification,reference being had to the accompanying drawings.

The object 01": my invention is to make a hammer or hatchet in which thenails to be driven are fed automatically from a box connected with thehammer through the hammer-handle and head of ham merinto position to bedriven. In shingling aswell as in lathing it is especially desirable todrive nails rapidly, and at all times to have one hand free to place theshingle or lath in position without it being necessary to place theshingle or lath and then with that hand take a nail and place it andhold it in position where it is to be driven.

In naccompanying drawings, Figure 1 represents a vertical sectionalvievt7 of my improved hammer, taken at the line 1 1,`Fig. 2. Fig. 2represents a plan sectional view taken at the line 2 2, Fig. l. Fig. 3represents a vertical sectional view taken at the line 3 3,-

Fig. 1. Fig. 4 represents a side elevation of a detached portion takenat the line 4 4, Fig. 2. Fig. 5 is a bottom view of the cut-off deviceJ.

I have made application for a patent of even date herewith, Serial No.357,558, showing a tack or nail box with a slotted bottom; also, acut-olf device for feeding the tacks or nails one by one, substantiallythe saine as shown in this application, and therefore I do notspecifically describe or claim the same herein.

In accompanying drawings, A represents the hammer-handle, and B thehammer-head, which may he made in the form of a hatchet or in any of theWell-known forms of hammer-heads. Y

C is a box located on or in the hammerhandle A, into which the nails areplaced. The lid D of the box maybe hinged thereto, or secured to the boxin any suitable manner.

E is a slot in the bottom of the box wide of the nails to fall through.

F is an opening through the bottom of the.

box connected with the slot E, and is large enough for the heads of thenails to drop through. There maybe one or more of these openings F inthe bottom of the box.

G is a deep slot in the hammer-handle wide enough to receivethe shanksof the nails, but not wide enough for the heads of the nails.

As the Shanks of the nails fall through the slot E in the bottom of thebox they pass into the slot G in the hammer-handle, and when the headsof the nails pass through the openings F they rest upon the upper edgesof the slot G in the space I'I in the position shown by the nails I I,Fig. 1. In this position the enoughv for the shanks of the nails to fallthrough, but not wide .enough for the heads nails pass down to the headof the hammer until they strike the point of the cut-off J. (Clearlyshown in Fig. 3.)V The cut-off .I is constructed in the form shown inFig. 3 and is placed in the hammer-handle in such position that thepoints K Kot `the cut-off eX- tend inwardly across the path of the nailin its passage from the hammer-handle to the head of the hammer. Thesepoints are spread so that the lateral space between vthem is the widthof the shank of a nail.

' The cut-ott J, when in position so that the point K crosses the pathof the nail, as shown in 3, holds the nails from passi ng'forward intothe head of the hammer; but when the cut-off J is moved laterally, ashereinafter described, so as to throw the point K across the path of thenail, it simply passes behind one nail, which passes forward intoV thehead of the hammer, because the point'K is removed from in front of itat the same time that the point K passes between it and the next nailbehind it. The nail that has passed the cutoff J falls in the verticalopening M in the hammer-head and passes down against the pivoted blockN, where it rests until the plunger O is forced down against its headand forces back the pivoted block N, which admits of the passage of thepoint of the nail until the head of the nail is pressed undertheshoulder P in the hammer-head. The pivoted block N presses against theside of the nail IOO and holds the head of the nail under the shoulderP.

Q is a spring whose tension forces the block N against the side of thenail, as above specified.

Risa slide, whichl I make, preferably, in the form of a band whichsurrounds the hammerhandle, and is operated by the rods S, held inbearings T, secured to the hammer-handle. This rod has a loop U, adaptedto receive the finger of the operator to move the slide R.

V is a spring which returns the slide R to its normal position when therod S is released by the operator. Y

-The slide R is pivotally connected to the slotted crank-lever d in suchmanner as to vibrate it upon its pivot b. I have shown it connected withthe crank-lever ce by means of a notched piece o, as clearly shown inFig. l; but any other well-known pivotal connection would operate in thesame manner.

The crank-lever ot has a slot d, which receives the pin e, that isrigidly attached to the plunger O, so that when the rod S is Vdrawnback, moving the slide R ba'c'k on the handle A, the crank-lever athrows the plunger O down andforces a nail beneath it into position withits head beneath the shoulder P in the hammer-head. The operator thenstrikes a blow with the hammer and-partly drives the nail. He thenraises the hammer from the nail, the pivoted block N recedingsufficiently far to allow the nail-head to pass out between the block Nand the solid portion of the hammer-head. The spring Q immediatelyrestores the block N into the position shown in Fig. l, when theoperator strikes another blow with the hammer and finishes driving thenail. The operator then releases the rod S, when the spring V moves theslide R back, thereby raising the plunger O to the position shown inFig. 2. The slide R in this back movement at the same time moves thecut-off Jto admit of the passage of a nail into the opening M in thehammer-head, when the above operation is repeated. The cut-off J isoperated by means of a spring f, which is attached to the side of thehammer-handle in' erally, moving it horizontally and projecting thepoint K into the position shown in Fig. 3. `Vhen the slide R is drawnback by the tinger of the operator, pulling the rod S so as to overcomethe tension of the spring V, the spring-rod f is released from thepressure of the slide R, moved outward, and so slides the cut-o .Ilaterally, removing the point K from across the slot G, and extendingthe point K crank-lever a.

across said slot, which renders free one nail to pass into the verticalopening in the head of the hammer.` If the slide R presses thespring-rod f inward again the point K retires, and the point K passesacross the path of the nails, when they all move. forward the distanceof the two points K and K. VAs the plunger O is raised by the sameoperation that nail which had been freed drops into the hole M. 'By thisoperation each time that the plunger O is raised into the position shownin Fig. l a nail passes' into the cut-off ,and another drops into theopening M in the hammer-head beneath the plunger. When the plunger O isforced down by the operator, he draws the slide R back, therebyvibrating the 'Ihe cut-off is moved laterally by the spring f, andthrows the point K of the cut-olf in front of the nails, allowing thenail in front to move forward, and when the plunger'is restored to itsnormal position that nail passes into the hammer-head, the oppositepoint of the cut-oft being thrown across the path of the nails. In thismanner there is one nail fed into the head of the hammer at each backand forth stroke of the slide R, and at each up and down movement 0f theplunger O.

I prefer to make the hammer-head solid, with the exception of a slot 71.through it wide enough to receive the crank-lever a and theconnecting-slide which operates it, and a slot beneath the handle inwhich the block N is pivoted.v The opening in which the plunger O passesI prefer to make in a circular form, and it can be bored into the sideof the slot h from the slot-opening in which the block N is pivoted. Theplunger O can be placed from beneath into its place in the hammer-head.Then the crank-lever a can be inserted. The slot cl, being open at oneend, will pass upon the pin e, that is secured to the plunger O, and therivet b can then be inserted, which will secure the parts in place. Theblock N is pivoted in the hammer-head by a pin fi. By this constructionI have a hammer with substantially a solid head and am able to make itcheaply. The spring Q, which holds the block N in position, is madesufficiently strong to press the nail laterally as it is forced downwardhard enough to push it beneath the shoulder P.

The blow which partly drives the nail should be hard enough to stick thenail into the board sufliciently to hold it and to force the spring Qback sufficiently to allow the head to pass the block N, when the springimmedidiately closes the block Nagain into position, leaving no openingin the face of thehammer when the nail is finally driven. Ity alwaystakes two o r more blows to drive `a nail with this hammer. I dnd,however, that a hammer constructed with this improvement enables me tolay shingles and laths and nailthem with great rapidity.

The hammer which I have constructed is adapted to feed and drive shingleand lath IOO nails. I found itto be entirely practical both in itsoperation in feeding the nails from the box to the hammer-head and alsoin its being adapted to drive nails. Y

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is

l. A hammer-head provided with an opening M, a plunger O, sliding insaid opening, a clamping device N, receiving the nails forced down theopening, and a shoulder P, adapted to bear against the nail-head whileclamped in said device, substantially as described.

2. In a hammer-handle, means for laterally moving a cut-od J, consistingof a spring f, attached to the same, and a slide R, gliding over thespring and forcing it toward the handle, and means for moving the slideR, substantially as described and shown.

3. The plunger O, the crank-lever@,'pivoted to the hammer-head andhaving a positive connection with the plunger O,so as to operate itvertically, the notched piece c, by which the crank-lever is actuated,and mechanisms for actuating the notched piece c and the cutoff, wherebya nail is fed under the plunger at each upward stroke, as specified.

4. The combination of the box C with anailslot E and a nail-opening F,slotted handle A, cu `.ot'f J, plunger O, and opening M, Whereby nailsare fed from the box to the cut-off,

delivered by the saine in-to the opening, and forced down by the plungerinto position to be driven, substantially as speciiied and shown;

5, The slotted hammer-head B, provided with the shoulder P, the pivotedblock N,

plunger O, and cut-off J, whereby nails are forced by the block N underthe shoulder `P, substantially as shown and described.

WM. JACOBY. Witnesses:

WILSON BoRsH, WM. M. DAVIS.

